From: "Paul Rolland" <rol@witbe.net>
To: "'Pierre Ossman'" <drzeus-list@drzeus.cx>,
       "'LKML'" <linux-kernel@vger.kernel.org>, <cramerj@intel.com>,
       <john.ronciak@intel.com>, <ganesh.venkatesan@intel.com>
Subject: Re: e1000 with serdes only shows a fiber port
Date: Mon, 13 Mar 2006 17:23:14 +0100
Organization: Witbe.net
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Hello,

> The device id of both controllers is 8086:107b, meaning 
> SERDES. However,
> if I look into e1000_ethtool.c:e1000_get_settings() I can see 
> a test for
> copper media, then and else assuming that the card is a fiber card.
> Since this card can do both I'm guessing this code is broken.

I think it simply means the card can only operate one of the two
modes at one time...

> Settings for eth0:
>         Supported ports: [ FIBRE ]
>         Supported link modes:   1000baseT/Full
>         Supports auto-negotiation: Yes
>         Advertised link modes:  1000baseT/Full
>         Advertised auto-negotiation: Yes
>         Speed: Unknown! (65535)
>         Duplex: Unknown! (255)
>         Port: FIBRE
>         PHYAD: 0
>         Transceiver: internal
>         Auto-negotiation: off
>         Supports Wake-on: umbg
>         Wake-on: d
>         Current message level: 0x00000007 (7)
>         Link detected: no

Did you try something like :
ethtool -s eth0 port tp
or
ethtool -s eth0 port mii

as the man page for ethtool says :
       port tp|aui|bnc|mii
              Select device port.

and ethtool indicates it supports :
        ethtool -s DEVNAME \
                [ speed 10|100|1000 ] \
                [ duplex half|full ]    \
                [ port tp|aui|bnc|mii|fibre ] \
where fibre is what you have selected right now (from your report...)

Paul

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